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Klipsch Synergy Sub-12

Klipsch Synergy Sub-12
alaScore 87

562 reviews

Apr, 2018

alaTest has collected and analyzed 562 reviews of Klipsch Synergy Sub-12. The average rating for this product is 4.6/5, compared to an average rating of 4.3/5 for other Speakers for all reviews.

We analyzed user and expert ratings, product age and more factors. Compared to other Speakers the Klipsch Synergy Sub-12 is awarded an overall alaScore™ of 87/100 = Very good quality.

Review analysis

(Based on 562 reviews)

Expert Reviews  

User Reviews  


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Showing 1 - 487 of 556 Show Reviews: in English | in other languages (6)

Consumer review ( review summary for Klipsch Synergy Sub-12


alaTest has collected and analyzed 477 user reviews of Klipsch Synergy Sub-12 from The average user rating for this product is 4.6/5, compared to an average user rating of 4.2/5 for other Speakers on

95% of the reviews on give this product a positive rating.

This summary is based on the products: Klipsch Sub-12HG Synergy Series 12-Inch 300-Watt Subwoofer with High Gloss Trim (Black)Klipsch Sub-12HG Synergy Series 12-Inch 300-Watt Subwoofer with High Gloss Trim (Black)

Apr, 2018

Expert review by : Steve Guttenberg (

Klipsch Synergy Sub-12 review


Klipsch Sub-12 subwoofer

The Klipsch Synergy Sub-12 is a full-size subwoofer that offers a down-firing 12-inch woofer, a 300-watt amplifier, and connectivity options that cover all bases.

A real wood veneer would look nicer.

The Klipsch Synergy Sub-12, the company's most affordable 12-inch subwoofer, sounds great on music and movies.

Apr, 2006

Expert review by : Andrew Robinson (

Episode ES-SUB-12-300-MB Powered Subwoofer Reviewed


Episode has released their largest subwoofer to date with the ES-SUB-12. While its looks may not be so impressive, reviewer Andrew Robinson's evaluation claims the performance is quite the opposite.

The ES-SUB-12's build quality is phenomenal, possessing smooth lines, solid construction and the warranty to back it up. While the finish may not be automotive grade, it's not supposed to be, for the ES-SUB-12 is designed with the intention of being...

The ES-SUB-12's grille is a bit finicky and cheap, but then again, you'd probably leave it off when installing it into an AV cabinet anyway ; I'm sure many will criticize the ES-SUB-12 for its simplicity, for many subs in its price bracket feature some...

To say that I was impressed following my time spent with Episode's big daddy subwoofer, the ES-SUB-12, is a bit of an understatement. At first glance, there's little to get excited about, for the ES-SUB-12 appears to be behind the times in terms of...

Dec, 2011

Expert review by (toptenreviews.com_old)

Klipsch Synergy


Read our review to find out what the best bookshelf speaker available is. The Klipsch B-20 is sure to surprise you.

These speakers are highly efficient. They are powerful but don’t waste any energy

The lowest frequency these speakers can produce is 62Hz

The Klipsch B-20 speakers are the best speakers we reviewed. They would make a versatile and dynamic addition to your stereo system or home theater.

Consumer review (

Earth Shattering Death by Bass


This sub is no Barry White, it's not meant for music. It's meant for heart stopping Low Frequency Experience. If your HT system is missing the Feel, this is it. This blew away the 15" sub I had for LFE. If you are looking for musical bass, look...

Truly purpose built for LFE. Definately will feel the thunder and earth quake experience as the movie intended

Should set the low pass all the way down. This sub isn't meant for music, as it's too muddy.

Jan, 2013

Consumer review (

Amazing bass for a 12 at this price


I have one on my living room surround and I'm buying another for my projector surround. I have it in a 12x15 room at about 20% volume and it's knocking the pictures off the wall. I have not had any distortion of any type. The family is honestly loving it.

Nothing so far

May, 2016

Consumer review (

Awesome Boom!


Great product especially at the discounted price! You won't be disappointed!

Sounds great, the woofer booms now when either watching a movie or listening to music rock now, very clear! Love it

The standby light "red" and the "on" blue light are kind of annoying as they are very bright.

May, 2016

Consumer review (

Hard to beat for the money


I haven't compared this with other subs. If I can get my VTF-2 (MK1) repaired, I might update this review.

Does what it's supposed to. Its down-firing design makes it less likely that the driver will be damaged.

Some port noise can be heard if you play sine waves in isolation. You probably won't hear it in the context of music or especially a movie. If you put this in a room that's too big, response below the mid 30's will drop, making it sound like it has a...

May, 2016

Consumer review (

An amazing sub, great price, and excellent shipping for $1.99!!!


Highly recommended! Comes with 5 year Klipsch warranty too!

Shipping was fast and inside another box plus it's own box so fully protected. Very fast shipping! Hooked up to new receiver and it is amazing when paired with the Klipsch Quintet speakers. Very happy with this purchase and excellent service from Newegg!

None at all.

Apr, 2016

Consumer review (

Very Nice Speakers


Good range, but then again that's all adjustable from your receiver. These things are loud as h**** too, I can easily over power any other speaker in the house. These are a lot better than my old speakers, and not overly pricey either

none, at the moment

Sep, 2015

Consumer review (

good price trusted brand


Great sound from these small speakers for a starting surround sound system

Only received one cloth cover instead of one for each speaker, not sure who to contact about getting a second one

Sep, 2015

Product Specifications

The Synergy Series Sub-12 hurls out enough power and bass extension to shake the foundation. It uses high-quality materials and the most reliable components to create a rock-solid impact that makes your movies and music come alive. The Sub-12 gets its intensity from a 12-inch, down-firing driver coupled to a highly efficient BASH Class D amplifier that creates 300 watts of continuous power and 650 watts of dynamic power. Because of its ample enclosure size and large, rear-firing port with flared ends, the Sub-12 produces increased bass response with low distortion. The subwoofer's built-in, steep-slope (24dB/octave) low-pass crossover is continuously adjustable from 40 to 120Hz. A phase control facilitates acoustical integration of the subwoofer with the other speakers in the system. An "auto power" feature enables the subwoofer to turn itself on and off (standby) automatically, based on the presence or absence of an audio signal. A blue/red dual color LED display on the front of the subwoofer indicates whether the unit is on or in standby mode. In addition to its ability to play louder and go deeper than anything else in its class, the Sub-12 features a new industrial design that is refined and aggressive. Available in a black finish with titanium accents, this extraordinary subwoofer matches the entire Synergy Series lineup in both style and performance. Because it wraps technical superiority and eye-catching cosmetics into one affordable package, the Sub-12 perfectly anchors a home theater or two-channel system.


Color of product:Black

Dimensions & Weight


Energy Management

AC input frequency:50/60
AC input voltage:120 / 220
Power source type:AC


Packaged Quantity:1
Product Line:Klipsch Synergy


Color:Black/Black / Titanium/Black / Titanium

Ports & interfaces

Line-in: Yes
Line-out: Yes


AC input frequency:50/60
AC input voltage:120
Power source type:AC

Remote Control

Type: None

Speaker System

Amplification Type:Active
Connectivity Technology:Wired
Max (RMS) Output Power:650Watt
Nominal (RMS) Output Power:300Watt
Response Bandwidth:24 - 120Hz
Speaker System Type:Subwoofer


Number of subwoofers:1
Subwoofer driver diameter:12
Subwoofer driver diameter (imperial):12
Subwoofer driver size:12
Subwoofer frequency range:24 - 120
Subwoofer peak power:650
Subwoofer RMS power:300
Subwoofer sensitivity:117
Subwoofer type:Active

Technical Details

Bass reflex: Yes
LED Indicators:Power, Stand-by
Phase control: Yes

Weight & Dimensions

Subwoofer depth:19.9
Subwoofer height:18
Subwoofer weight:40.1
Subwoofer width:15